Page 24 



BETTER FRUIT 



-fc 



Holt" 



STOC KXO N 



Callferni • 



PEORIA 



tOS ANGELES 



C.flform. 



PORTLAND 

 5 PO KANE 



i 



Second Line of Defense 



Behind our Army and Navy is our second line of 

 defense — the farms of this country — which must 

 provide the food necessary at home and abroad. 

 The "Caterpillar" Tractor's important share in this 

 work is to cultivate and harvest the crops more 

 cheaply and more efficiently, to economize in man 

 power, to increase production. 

 Because it will stand up to continuous, severe ser- 

 vice, because its cost for operation and upkeep is 

 low, because it will work under any and all condi- 

 tions, the "Caterpillar" Tractor stands supreme. 

 Holt manufacturing experience of more than three 

 decades and Holt high standards of design, materi- 

 als and construction have established and main- 

 tained this supremacy. 



What the "Caterpillar" Tractor has done for others 

 in reducing costs and increasing profits it can also 

 do for you. Write today for complete "Caterpillar" 

 Tractor information. 



CATERPILLAR 



REG. U.S. PAT. OFF. 



/ 



The House of Rex 



The Institution in Spray Manufacturing 



Founded Upon Quality and 



Developed by Experience 



The Right Articles 



The Right Service 



The Right Price 



Write your nearest "REX" Company for prices and service. 



Remember, from them you can obtain a 



" 'REX' FOR EVERY ILL." 



Yakima Rex Spray Company, Yakima, Wash. 

 Wenatchee Rex Spray Company, Wenatchee, Wash. 

 Payette Valley Rex Spray Company, Ltd., Payette, Idaho 



April 



which is generally regarded as associ- 

 ated with an abuse of irrigation water. 

 I am not sure that I can agree that it is 

 due to an abuse of water, primarily, but 

 it is of so much importance to the or- 

 chard industry, not only of the North- 

 west, but of the whole country as well, 

 that we can well devote some discussion 

 to it. We have heard many theories 

 as to the cause of the disease. We have 

 heard that it is due to alkali troubles; 

 that it is due to irrigating too close to 

 the trees; that it is due to winter in- 

 jury; and that it is due to a dozen other 

 causes, but really there has been very 

 little knowledge about the disease in 

 the Northwest. No doubt I shall startle 

 many of you when I say that a large 

 proportion of the cases of "collar rot" 

 are in fact "collar blight" and due to 

 fire blight directly. The other factors 

 cited above as causes may contribute to 

 the prevalence of the disease and in 

 some cases may afford the blight bac- 

 teria an easy entrance for the further 

 progress of their work, but it is certain 

 that much of the trouble can be traced 

 to fire blight. Why the blight should 

 appear in this localized part of the tree 

 and not in the tops is not known. Vari- 

 eties known to be susceptible to blight, 

 such as Spitzenberg, Grimes and Jon- 

 athan, are also most subject to collar 

 rot. Aside from the regular form of 

 fire blight, if one may be permitted to 

 assign it a "regular" form, the collar 

 rot disease is undoubtedly the most 

 serious menace to the orchard industry 

 of the Northwest. It should be dealt 

 with most vigorously, and systematic 

 attempt made to hold it in check. 

 Where it is found in time it may be 

 controlled by cutting out the infected 

 portions and disinfecting the wounds 

 in the manner you are familiar with in 

 the case of blight in the tops of the 

 trees. Covering the wounds with 

 melted grafting wax after disinfecting 

 them will facilitate healing, but in 

 small cuts this is not necessary. In case 

 a tree is girdled more than half way 

 around it is a large question whether 

 it is worth while to bother with it, as 

 the chances are that it will not recover. 

 The practice of planting small trees 



NOW is the time to send to 



Milton Nursery Company 



MILTON, OREGON 



FOR THEIR 1918 CATALOG. 



FULL LINE OF NURSERY STOCK. 



"Genuineness and Quality" 



Spray Hose 



"GUARANTEED" BRAND 



Buy something good, it pays, 

 If your merchants do not carry 

 it, we will sell you direct, express 

 charges prepaid, 25c per foot. 



Gutta Percha & Rubber Mfg. Co. 



544 1st Ave. So., SEATTLE 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



